2012Dallas County Speedway

Pro-Stock Class Rules

1.       Frame:  Must have full body frame. No station wagons, 4x4, pickups, el Camino.  Must be strictly stock. No plating of frame.

2.       Roll cage: Full 4 point cage, door to door, firewall to firewall is required. Inch and half or greater pipe, .095 or greater thickness is required. Fuel cell protection to the rear of the car only. Front kickers in engine compartment must attached to frame behind front spring pocket.

3.       Door bars: Must have a minimum of three door bars. May have metal door protection that does not exceed 6 inches past the door frame on front door. Nothing more than 1/8 inch plating

4.       Body: Must be stock body. No jagged or protruding metal. Must be factory front firewall. Rear not to exceed 16inches in front of factory location. No holes in firewall between driver and engine. Remove all exterior trim, molding, and glass. Doors must be chained or welded shut. Will allow small hoop 6 in behind rear tire, maximum .095 thicknesses, between outside of frame and inside of rear quarter panel. Cannot be bolted to fender. No bars allowed around wheel wells. NO extra reinforcement around wheel wells.

5.       Drivers compartment: Window net on drivers side required. Full screen in place of windshield. Remove all flammable material including dash, door panels, carpeting, and bench seat. Approved circle track steel or aluminum racing seat required.4 point harness required. Seat and harness must be attached to cage.

6.       Suspension: Must be factory shocks and springs. Must me in original location.

7.       Rear end: May use nine inch Ford rear end in any car. Shocks and springs must be in original location.

8.       Bumpers: Must be factory OEM style bumper. Bumper straps from side of bumper to fender is recommended, maximum material is 6” wide 12” long 1/8” thick. No extended tubing or angle iron. Plastic nose cones allowed over bumper.  No kickers. Must start race with bumper, if it falls off you will be equipment flagged. Must enter next race with bumper. Tow hooks mandatory on front and rear bumper. Must be visible from standing location.

9.       Tires/Wheels:  8” tire max (Hoosier G60-16 is ok). Bead locks are ok.  8” Rim max. All wheels must have 1 inch lug nuts. Cars cannot race with stripped or broken studs.

10.   Brakes: 4 wheel working brakes required. No brake valves.

11.   Fuel system: Must have racing fuel cell with roll over protection valve and vented. Must be in trunk. No rubber fuel or oil line inside driver’s compartment. Must be carbureted. 4 barrels allowed.  Cam 2 allowed. No nitrous, alcohol, or oxygen additives allowed.

12.   Weight:  No ballast of any kind allowed.

13.   Battery: Battery must be contained in metal box, secured tightly and covered. Must be located in trunk or drivers compartment.

14.   Engine: Must be in stock location. Must be manufacture specific to chassis. 366 CI maximum Chevy and Ford. 375 CI maximum Mopar. Maximum cylinder compression of 175 psi at any time. Motors must pull 15in (16, 17, 18,) of vacuum at 1000 rpm that is checked at the intake. 4 barrel carburetors allowed. 1 inch adaptor plates will be allowed. No roller tip lifters, no roller cams. Steel Roller rockers allowed. No porting or polishing. Headers allowed, Aluminum intakes allowed, MSD allowed.

15.   Heads: Must be cast iron stock style heads. No aluminum heads. Vortex and double hump heads allowed. Maximum 2.02 Intake valve 1.60 Exhaust valve. 

16.   Transmission: All automatic transmissions must have a working torque converter. Stall converters allowed. Transmission coolers must be located under hood (NOT in drivers compartment).

17.   Drive shafts: must be painted white. Must have a loop 360 degrees around the front of the drive shaft approximately 3” behind u-joint. No chains no aluminum driveshaft’s.

18.   Radiator: Radiators in stock mounts only. Radiator supports can only have 1/8" tubing in a hoop where original was. Nothing more than a wire screen or stock grill in front. May have 2 straps, like seat belts holding radiator. May have 1 bar in front of radiator not to exceed a 1 1/2 inch in diameter no wider than the frame. Kickers must be in front of spring pockets.

19.   Safety: All drivers must wear approved safety equipment at all times on the track. Approved safety equipment is: protective headgear, long sleeves, long pants are mandatory. Neck rolls and fire suits are very highly recommended.

20.   Post Race Tech. All cars to stay on track. Cars must pull 15in of vacuum to pass tech. One pit person per car on track after race is over. Open hoods only upon officials discursion.  NO riding on cars.

21.    Must have three sided sign (16”X16”) securely fastened to roof. Sign must be red with white numbers.

22.   This is limited to stock class drivers only. If you think a car is illegal, you can place a $100 cash protest. If wrong, the driver that is being protested gets $50 and Dallas County Figure 8 gets $50. If you are correct, you get $50 back and the Dallas county Figure 8 gets $50 and the driver who was incorrect will be disqualified for the night. This protest need to be done within 10 minutes after the stock main. Inspection and tear down of the car will follow stock main re-tech. If you refuse a protest, driver will be disqualified for the rest of the year. Driver of protested car, 1 pit man and person who protested are allowed in the inspection area. Protests can only come from a stock class driver who paid to race that night. Protests must be made at check-in building. Cash only - no checks.